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pre-calculus

given that c is the logarithm of x in base a, and d is the logarithm of x in base b, find the general statement that expresses the log of x in base ab, in terms of c and d.

[*subscripts not included: a,b,ab]
loga_x=c ; logb_x=d
...logab_x = [in terms of c and d]

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